Locomotive bed



Feb. 23 v, 1926.

H. M. PFLAGER LOCOMOTIVE BED 2 Sheets-Sheet 1 Filed April l3, 1925 In ventur- W W/ Watt f QM bbw Feb. 23 1926.

H. M. PFLAGER I LOCOMOTIVE BED Filed A rii 13, 1925 2 Sheets-Sheet 2.

Patented Feb. 23, 1926.

UNITED STATES 1,573,993 PATENT OFFICE.

HARRY PFLAGER, OF S'I'QLOUIS, MISSOURI, .ASSIGNOR TO COMMONWEALTH STEEL COMPANY, OF'jST. LOUIS, MISSOURI, A CORPORATION OF NEW JERSEY.

LOCOMOTIVE BED.

Application filed April 13, 1925. Serial No. 22,818.

' To all whom it may concern:

- 1 the same.

Be it known that I, HARRY M. PFLAGER, a citizen of the United-States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Locomotive Beds, of which the following is a specification, such as will enable other's'skilled in the art to which it appertains to make and use My invention-relates to railway rolling stock and consists in an improvedlocomotive bed construction particularly adapted for locomotives utilizing one or more steam cylinders located near the center of the locomotive as well as the usual steam cylinders located on the outside of the bed. W

The object of my invention is to provide an integral structure comprising the frame and cylinders and preferably including the steam supply chambers and boiler saddle also. By making the frame of integralconstruction I am able to provide a rigid structure which will maintain predetermined dimensions between the cylinders and the drivers. The elimination of the 'fitting and assembly of many separate parts reduces the expense of producing a complete bed and enables me to provide a structure which for a given weight-will be stronger than one produced by theassembly of a number of separate parts.

In. locomot ves of this type there are a -number of places where the clearance between adjacent'parts is so small that it is difficult to insert bolts and rivets or to otherwise assemble the parts together and by making the structure inte ral the necessity of providing clearance for assembling purposes is largely eliminated.

In the accompanying drawings which illustrate my invention- Figurel is atop view of a locomotive bed -c including integral cylinders at its forward ends located on the outside of the frame and 7 also including a cylinder located-on the longitudinal center line of the frame." In thished the locomotive cradle is also formed integral with the bed and in this respect the bed corresponds to that shown in my copending application Serial No. 7 53,277 filed December 4,19%. v

Figure 2- -is a side. elevation of the bed shown in Figure 1 with the wheels indi cated."

Flgure 3 1s a transverse vertlcal section taken through the steam cylinders and supply chambers and drawn on an enlarged scale.

Figure 4 is a longitudinal vertical section taken on line 44 of Figure 3.

Figure 5 is a vertical transverse section corresponding to Figure 3 but illustrating a modification of my invention.

7 The bed comprises side frames 1 which are connected at intervals throughout the length of the bed by suitable cross elements 2. These frames terminate at their rear in the cradle frame 3 and are recessed at 45 to provide pedestals for the driving boxes, not shown. The side frames will be braced across the openings 4. by suitable members 5. The forward ends of the side frames have integrally formed therewith cylinders 6, 7 and 8, cylinders 6 and 8 being located on the outside of said frames 1 and cylinder 7 being located between them and above the their respective cylinders are suitable steam passages 12, 13 and 14. Above cylinder 7 .aresuitable projections uniting to form a saddle 15 on which the front end of a locomotive boiler may be supported. Suitable exhaust passages 16, 17jand 18'will be provided in the casting, all of these passages terminating in an outlet near the center of saddle 15 for the purpose of dischar ing the exhaust'into' the smoke box accor ing to established practice.

With this structure it will be seen that the steam cylinders; are rigid with each other and with their respective supply chambers and are rigidly s'pacedfrom the drivers and the yokes 29 which mount the valve gear because of the integral structure of the frame between the cylinders and the pedestals for the driving-boxes.- By making the frame and cradle integral, the boiler supports, indicated at 19 and 20, are maintained in proper relation to the forward boiler support formed'by Y saddle 15 and disadvanta ges due to the assembly of the cradle and parts mounted thereon with the main frame are eliminated.

In Figure 5 I illustrate a modification of my invention in which four cylinders areprovided, two of these cylinders 21 and 22 being located .,on the outside of the side frames 23, and two of the cylinders 24 and 25 being located betwen .the side frames. Thisoconstruction embodies suitable arrangements of the steam supply chambers and the passages from these chambers to the cydinders and from the cylinders t the exhaust. It will be understood that the supply chamber '27 is adapted to suppl cylinders-21 and 24 andthat supply cham er 28 is adapted to supply cylinders 22 and 25 instead of each steam cylinder having/its individual supply chamber as indicated in the structure shown in Figures 1 to 4.

Obviously, the details. of construction of the different parts shown as formed integral with the main frame may, be varied to suit special circumstances without departing from the spirit of-iny invention as expressed" in the following claims.

I claim:

1. A locomotive bdd including a steam cylinder formed integrally with said bed and l located centrally thereof.

2. A locomotiive bed comprising. side frames, and a steam cylinder formed in tegrally with said side frames and. located between-them.

3. In a locomotive: bed, a longitudinal frame, and a plurality of cylinders formed integrally with said frame and with each other and respectively located at each side of said frame and centrally thereof.

4. In a locomotive bed, side frames, a

steam cg'linder formed integrally on the outer si or more steam cylinders with said side frames an them. I

5. A locomotive bed including a steam cylinder formed integrally with said bed and located centrally thereof, and a steam supply chamber for said cylinder formed integrally with said bed and cylinder. 6. A locomotive bed comprising side frames and a steam cylinder formed integrally with said frames and located be 2 embed mtegrally d located between tween them and a steam supply chamber for said cylinder formed integrally therewith and located adjacent one of said side frames.

7. In .a locomotive bed, a longitudinal frame and a plurality of cylinders formed integrally therewith and with each other and respectively located at each side of said frame and centrally thereof, and indi- V vidual steam supply chamber for each of steam c linder formed integrally on the said cylinders formed integrally'with said cylinders and frame. v

8. In a locomotive frame, side frames, a

outer si e of each of said frames and one or -more steam cylinders formed integrally with said frames and located between them, and- V l pedestals, saddle and e of each of said frames and one" bers beneath said saddle, .a steamsupalily chamside frames, and one or more steam cylinders formed integrally with said side frames and boiler saddle and located between said side frames and beneath said saddle.-

12. In a locomotive bed, a frame, driving box pedestals, and a steam cylinder located between the sides of said frame, said pedestals and cylinder being formed integrally with said frame.

13. In a locomotive bed, a frame, driving tween the sides of said frame, and steam cylinders located on the outside of said frame, said pedestals and cylinders being formed integrally with said frame.

box pedestals, a steam cylinder located be- 14. A locomotive bed comprising a frame,

driving box pedestals, a boiler saddle, and a steam cylinder-located between the sides of said frame beneath-said boiler saddle, said integrally with said frame. n

15. In a locomotive bed, a frame,.driving box edestals, a boiler saddle, a steam cylinder ocated'between the sides of said frame beneath said boiler saddle, and steam cylinders located on the outside of said frame,

box pedestals, a steam cylinder located be-,

tween the sides of said frame, a steam supply chamber for said cyhn'der, said pedestals, cylinder, and chamber being formed integrally with said frame- 17. In a locomotive bed, a frame, driving box pede'stals, a steam c linder located be- 1 tween the sides of-said e, steam cylinders located on the outside of said frame, I steam supply chambers for each of said cylinders, pedestals,,-cylinders and chamformed integrally with said 1 frame.

18. Ina locomotive bed, a frame, driving box edestals, a boiler saddle, steam cylinders ocated between. the sides of said frame her for said cylinder, said pedest s, saddle, cylinder, -a d chambers being formed integrally with saidgframe.

19. In a locomotive bed, a main frame, a steam cylinder located between the sides of cylinder being formed no said frame, a saddle above saidcylinder, and

a cradle, said cylinder, saddle, and cradle being formed integrall with said frame.

20. In a locomotive lied, a main frame, a cylinder located between the sides of said frame, bylinders located on the outside of said frame, a boiler saddle located above the.

level of said 0 linders, and a cradle, said cylinders, sadd e, and cradle being formed integrally with said frame.

21. In a locomotive bed, a main frame, a cylinder located between the sides of said frame, cylinders located on the outside of said frame, a boiler saddle located above the level of said cylinders, steam supply chamhers for said c linders, and a. cradle, said cylinders, sadd e, chambers, and cradle being formed integrally with said frame.

- 22., In a locomotive bed, side frames, a steam cylinder formed integrally with each of said side frames on the outer side thereof, and a plurality of steam cylinders formed integrally with said side frames and located between them.

23. A locomotive bed comprising side frames and a plurality of steam cylinders formed integrally with said side frames and located between them.

24. A locomotive bed comprising side frames and a plurality of steam cylinders formed integral y with said side frames and located between them, and steam supply chambers for said cylinders formed integrally therewith.

25. In a one-piece casting, a locomotive main frame, a boiler saddle, and a plurality of cylinders beneath said saddle.

26. In a one-piece casting, a locomotive main frame, a boiler saddle, and a plurality of cylinders located centrally of said frame and beneath said saddle.

27. In a one-piece casting, a locomotive main frame, a boiler saddle, and aplurality of cylinders and steam supply chambers beneat said saddle.

In testimony whereof I hereunto afiix my signature this 8 day of April, 1925.

' H. M. PFLAGER. 

